Unequal error protection of H.264/AVC video over wireless using hierarchical QAM

Chang, Yoong Choon and Lee, Sze Wei and Komiya, Ryoichi (2007) Unequal error protection of H.264/AVC video over wireless using hierarchical QAM. In: 9th IASTED International Conference on Signal and Image Processing, 20-22 AUG 2007, Honolulu, HI .

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Abstract

In this paper, unequal error protection (UEP) of H.264/AVC coded video using hierarchical quadrature amplitude modulation (HQAM), which takes into consideration the non-uniformly distributed importance of intracoded frame (I-frame) and predictive coded frame (P-frame) is proposed. In order to optimally assign the hierarchical QAM high priority (HP) and low priority (LP) bits to the H.264/AVC coded video, a low-complexity optimal allocation algorithm is also proposed. The proposed low-complexity algorithm reduces the computational complexity of the optimal allocation problem, compared with the exhaustive search process. Simulation results demonstrate that our UEP scheme outperforms the conventional UEP scheme.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > T Technology (General)
Q Science > QA Mathematics > QA75.5-76.95 Electronic computers. Computer science
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 13 Oct 2011 06:58
Last Modified: 13 Oct 2011 06:58
URI: http://shdl.mmu.edu.my/id/eprint/3245

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